Long-Term Debt - Credit Facility Net Interest Expense (Details) - Revolving Credit Facility - Line of Credit - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Interest Expense and Amortization of Debt Issue Costs
Interest expense	$ 0	$ 582
Debt issue cost amortization	0	275
Unused facility fee	290	213
Total	$ 290	$ 1,070

Amount of amortization expense attributable to debt issuance costs.

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Represents the charge against earnings during the period for commitment fees and debt issuance expenses.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Aggregate amount of interest paid or due on all long-term debt.

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